Simple random sampling is also called proportional random sampling

Taken as a whole, the criteria for Acute Stress Disorder and the criteria for Posttraumatic Stress Disorder are __________ in the DSM-5 than in the DSM-IV-TR

a. more similar b. more distinct c. particularly different in terms of severity of symptoms d. unchanged

Todd is watching television. A character on a show is pretending to be nice to gain the trust of a group of friends. He then uses their trust to trick them into giving him information that he uses to exploit them. Later, Todd tells his mom, "that man was really nice, and he just wanted to know the same stuff as everyone else.". What age is Todd likely to be, given this comment?

a. One b. Three c. Six d. 10